Wire-drawing machine.



J. H. ODONNELL saw. 1). PIERSON.

WIRE DRAWING'MAGHINE. APPLIUATION FILED JULY 26, 1910.-

. Patented May 7, 1912.-

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J. H. ODONNELL & W. D. PIERSON WIRE DRAWING MACHINE. APPLIOATION FILED mama, 1910.

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I WIRE nRAwiNG MACHINE. QAPPLIQATION FILED JULY 25, 1910.

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Patented May 7, 1912.

JOHN H. QDONNELL AND WILLIAM D. PIERSON,

ASSIGNORS, BY MESN E ASSIGNMENTS,

or WATERBURY, CONNECTICUT,

TO THE WATERBURY FARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

WIRE-DRAWING MACHINE.

Application filed July 25,

necticut, have invented certain new'and use ful Improvements in VTire-Drawing Machines, of which thefollowing a specification, reference being had therein to the accompanying drawings.

Our invention relates to new and useful improvements in wire drawing machines, and has for its object, among otherthings, to provide a machine of this character with friction mechanism so mounted and arranged within the block that the block may be removed and another one substituted without affecting the friction devices, and operate the same with mechanism of simple design that will be positive in its action and control; to provide the universally mounted 'die holder with means for limiting its movement in one direction; means for automatically actuating the friction device when the wire has been completely drawn through the die or is broken; and to arrange the several parts so that the grip in the block may be brought up close to the face of the die, without bringing the axis of the die holder, block, and grip in the same line.

To these, and other ends, our invention consists in the wire drawing machine, having certain details of construction and combinations of parts, as will be hereinafter described and more particularly pointed out in the claims.

Referring to the drawings, in which like numerals of reference designate like parts in the several figures; Figure l is a plan view of a portion of our new and improved wire drawing machine; Fig. 2 is a sectional view thereof upon line A-B ofFig. 1; Fig. 3 is a sectional View of the block shaft, show ing a plan view of some of the mechanism for operating the friction plate; Fig. 4: is a sectional view thereof upon line CD of Fig. 3; Fig. 5 "is a side elevation of the friction clutch with the mechanism for operating the same; Fig.6 is a front elevation, partly in section, of our new and improved wire drawing machine; with the treadle in section in substantially its down position, and Figs, 7 and 8 are front and end views Specification of Letters Patent.

Patented May}, 1912.

1910'. Serial No. 573,598.

' respectively of the treadle plunger and its casmg.

In the drawings, the numeral 1 designates the table, which is supported upon suitable legs 2, which'are connectedby the front and back angle plates 3 and'4c; 5 is the main driving shaft, which is rotating continuously in the journal boxes .6, connected with the legs 2; 7 is the block shaft, rotatably mounted in the cap 12 of the joirrnal box 6, and having a bevel gear 8 thereon, the teeth of which mesh into those of a pinion 9 fixed on the shaft 5. .Rot'atable on the shaft 7 is the. plate 10, to which the wire block 11 is secured by screws 13. Fixed to said shaft, or integral therewith if desired, and adja: cent to said plate, is the friction hub 14,

the head end 16 of which is secured to the plug 17 (Fig. l) on the plate 10,- and the tail end of which terminates in the pin 18 that projects into the path of one arm of a rock lever 19 that is pivotally mounted upon a standard 20, alsc secured to the plate 10. Said rock lever has a yoke stud 21 con-' nected therewith, within which a roll 22 is rotatably mounted.

Slidably mount'edwithin the block shaft 7' is the reciprocating rod 23, .tothe upper end of which is secured the friction plate 24:, by j means of the pintle 25, which pintle passes through a slot 26 in the shaft 7. Secured to the rod 23, the pintle28 is a hub 27, said pintle passing through a slot 29 in the shaft 7. Rotatably connected with the hub 27 is the split ring 30, having the pins 31 thereon that project radially therefrom into the arms of the fork 33 and is connected, through the rod 36, with the treadle 34, hinged. to the cap '8. by the pintle 35.

and provided with an L slot 39, through which the'treadle 34 projects.

In our invention the shafts 5 and 7 are rotating continuously and the block 11 is free to rotate with the shaft 7 orremains stationary, as desired, the connection between said shaft and block being thefriction coil 15.

To actuate the friction coil so as to couple whlch is surrounded by a friction coil 15,,

32, which is hinged to the leg 2 by the pintle- The numeral 37 designates the front plate, which is secured to the leg 2 by bolts 38,

below the block 11, by

the block 11 with the shaft 7. and impart rotation thereto, the treadle 34 is depressed to a point near the bottom of the L slot 39, and then moved laterally into the horizontal portion of said slot, when, by releasing the pressure thereon, the treadle. is held in its down position, shown by broken lines in Fig. 2, against the shoulder by the spring 41. During the downward movement of the treadle 34 the plate 24 is moved toward the hub 14, through the rod 23, until it contacts witlrthe roll 22, when the lever 19 is rocked upon its pivot mounting and the coil 15 grips the hub 14 by reason of the. engagement of said lever with the'pin 18. To release the friction and stop 'the rotation of the block 11, it is simply necessary to shift the treadle 34 laterally until it is disengaged from the shoulder 40, at which time the spring 41 will pull the same upwardly through the vertical portion of the "slot- 39, this action at the same time lifting the plate 24 from its engagement with the roll 22, when the coil unwinds itself sufliciently to release its grip upon the hub 14. 7

To insure against the accidental disengagement of the treadle 34 with the shoulder 40,'we have provided a plunger 42, which isslidably mounted within a casing 43 fixed to the plate 37, and having a coil spring 44 surrounding the shank thereof between the head and the integral shoulder 45, a fixed collar 46. limiting the movement of said plunger 42 in'one direction. The head of the plunger 42 normally lies across the.

I 44 forces the plunger 42 outwardly and moves the treadle 34 under the shoulder 40 and there holdsit against accidentaldisplacement. The outward position of the plunger 42 is shown in Fig. 7, and its retracted position in Fig. 6. p i

All of the mechanism within the block is concealed and protected against external injury by a cover 48 and the whole block is readily detached from,the plate 10 for repairs or substitution of a block of 'difl'erent size, by removal of the screws 13. I Pivoted to the block 11 by the stud 49 is the li-nk 50, to which the grip 51 is secured by the pin52, the whole being movable into or out of the recess 53 in said block. The peculiar construction of this grip, and the manner of securing the same in the block, constitutes no part-of our present invention, having been heretofore made and in common use;

which swivel block is rotatably mounted in the bracket 58, secured to the bed 1. The connection between the die holder 55 and bracket 58 is such that the die holder has both a vertical and horizontal movement. A stop screw 59 threaded through the lug (30 on the die holder contacts with the bracket ment of the die holder 55 therebetween.

Hinged to the plate 37, by the pintle 68, is the trip lever 69, having the screw 70 threaded through one end thereof, and connected at the other end with the trip rod (31 through the link 71, secured to the adjustable block 7 2.

To begin the drawing of wire in our improved machine, the wire block 11, now free to rotate upon the shaf'v 7, is moved about its axis until the grip, swun around upon its pivot mounting is brougit up close to the face of the die, to bite the wire, which has been previously pointed for about an inch or an inch and a half from the'end, and projected through the die from the rear, as. is common in the art, the die holder at this time being in its upward position, shown by broken lines in Fig. 6, and nor mally held in this position by the spring 73. lhe relative positions of the die holder and grip are such, at the beginnin r of the drawing operation, that the axes o the grip and die holder are in the same line, which, if extended, would not pass through the center of the block. Now, by depressing the treadle 34, the friction coil engages the hub 14' and the block begins to rotate, the grip during this rotation moving into the recess 53, as shown by the dotted lines in Fig. 1, at which time the die holder is moved. upon its pivot mounting, so that a line through the center thereof and the die will be tangential to the Wire block. As the drawing operation continues, the die holder 55 drops, by reason of the movement of the Wire about the block, until it assumes its down position, shown by full lines in Fig. 6. If the wire should break, the drawing strain upon the die holder is removed, and the'sprlng 73 moves the die holder upwardly and the spring (34 the trip rod 61 upwardly, imparting a rocking movement to the lever 69, and the screw 70 therein contacts with the treadle 34 and The drawing die is held against the arms 3 forces the same from its engagement with 54, of the C118 holder 55, punt-ally connected 1 the shoulder. 40 against the plunger 42, when with the swivel block 50 by the pintle 57, the spring 41 will move the same upwardly theblock.

anism is contained within the die block,

and is of such a nature that a new wire block may be substituted with'the'least possible labor and without interfering with the operation or adjustment of lthe friction finch-- anism; that the-wire block will ,be imme-' diately disconnected as soon as the wire breaks or is drawn thfiough its full length;

and that theinitial "drawing action"by the grip is in a direct, straight line with the die I and die holder, but not with the center of Within our invention any other type of spring for" operating the die-holder maybe used equally as well as the one herein shown, and wire blocks and grins of different sha s and relative size may besubstifuted it m those herein shown, and in other ways deniay be modified con siderably. q n i What we claim asfnew, and desire to secure by Letters Patent, is

1. In a wire drawing machine, the combination withthe bloc of a movable die I holder; a shaft; friction means fOr cQnnecting said block and shaft; a treadle, a connection between said treadle and friction means; means for holding said .treadle. against accidental movement when said friction means has operatively connected said block and shaft; and means, actuated from said die holder, vfor releasing said treadle from its holding means. i

, 2. In a wire drawin machine, the combinatlon wlth the bloc of a movable die holder; a shaft; f iction means for connectine' said block-and shaft; a treadle;-a con nection between said treadle and friction means; means for holding said treadle against accidental movement when said frictionmeans has operatively connected said block and shaft; means for releasing said treadlefro'm its holding means, comprising a rock lever having a part thereon that con tacts with said treadle when in its holding position; and a connection between said die older androck lever. 1 k

3. In a wire drawingjmachine, the com== bination with the block; of. a die holder; at shaft; friction means" for connecting said block and shaft; means for operating said friction means throu'gh said shaft; and means for operating saidfriction means ffom said die holder; 7

4. In a wire drawing machine, the combination with the block; of a shaft; friction m ans for connecting said block and shaft; a reciprocating rod in said shaft'for actuating said friction means; a treadlefmeans for connecting said treadle and rod, whereby said,vrod .may be operated during the rota tion of said shaft; means for holdin the. treadle' in one of its positions a die ho der'; and means, actuated by the movement of' said, die holder, for releasing said treadle from said holdin means; I

In testimony w ereof we afiix our signatures in presence of two witnesses. JOHN H. ODONNELL.

V .WILLIAM D. PIERSON. Witnesses:

B. D. Cnrnnnnss, FRED S. VAN VALKENBURG. 

